removing nidm_result from collections test in test_api.py
removing nidm_result from collections test in test_api.py

chrisfilo/NeuroVault,chrisfilo/NeuroVault,erramuzpe/NeuroVault,NeuroVault/NeuroVault,erramuzpe/NeuroVault,chrisfilo/NeuroVault,NeuroVault/NeuroVault,NeuroVault/NeuroVault,burnash/NeuroVault,erramuzpe/NeuroVault,burnash/NeuroVault,burnash/NeuroVault,burnash/NeuroVault,chrisfilo/NeuroVault,erramuzpe/NeuroVault,chrisfilo/NeuroVault,erramuzpe/NeuroVault,burnash/NeuroVault,NeuroVault/NeuroVault,NeuroVault/NeuroVault